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2.5. Bundles and JBoss ON Servers and Agents
2.5.1. Resource Support and the Agent Resource Plug-in
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Whether provisioning is supported is defined in the resource type. For a resource type to allow provisioning, the resource plug-in descriptor must defined a bundle target. That is the indication to the agent the provisioning is supported.
The
<bundle-target> element simply defines allowed base directories for the resource which can be used as base directories in the bundle definition.
Every resource plug-in descriptor defines a base directory, the root for all deployments, apart from provisioning configuration. For platforms, this is the root directory. For servers, it is usually the installation directory. The
<bundle-target> can use the already-configured base directory or it can set different directories to use. In the example, two directories — the deploy/ and lib/ directories — are given as supported base directories. When a bundle definition is created, the wizard offers the choice of which directory to use.
2.5.2. Server-Side and Agent Plug-ins for Recipe Types
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By default, JBoss ON supports one type of recipe, an Ant build file. However, other types of recipes could be supported because the recipe type is defined in a pair of plug-ins, one for the server and one for the agent.
The server-side plug-in tells the JBoss ON server how to manage bundles and destinations for that type of recipe.
The agent plug-in creates a child resource for the platform which is used to perform provisioning operations on the platform or target resource. For example, Ant bundles are actually deployed by the special JBoss ON resource, Ant Bundle Handler. This resource is added automatically to platforms as a child resource to enable Ant-based provisioning.
Note
Since recipe type support is implemented on the agent side through a special resource, that resource must exist in the JBoss ON inventory for it to perform provisioning. For example, without the Ant bundle handler in the inventory for a platform, JBoss ON cannot perform provisioning on that platform.
Administrators do not have to interact directly with the Ant bundle handler resource, but that child resource must be present in the platform's inventory for Ant provisioning to work.
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